CHARACTERIZATION OF A TUNABLE THIN-FILM MICROWAVE YBA2CU3O7-X/SRTIO3 COPLANAR CAPACITOR

被引:146
作者
GALT, D [1 ]
PRICE, JC [1 ]
BEALL, JA [1 ]
ONO, RH [1 ]
机构
[1] NATL INST STAND & TECHNOL,DIV ELECTROMAGNET TECHNOL,BOULDER,CO 80303
关键词
D O I
10.1063/1.110238
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have fabricated and characterized electrically tunable high temperature superconductor coplanar microstrip resonators incorporating tunable SrTiO3 ferroelectric thin films. The low frequency capacitance of the SrTiO3 capacitor is measured directly. High frequency capacitance and loss information are extracted from the observed resonances and compared with the low frequency data. Hysteresis loops display an onset of ferroelectricity at 160 K. The spontaneous charge and coercive voltage (at 10 kHz) as a function of temperature are extracted from these loops.
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页码:3078 / 3080
页数:3
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